I agree that it would take a lot of effort, but I think that after a while the selection of servers could be narrowed down to those that people like the most, and the different settings and options for each would be saved and they'd have to just be pasted in for example (I understand it's not that simple but you know what I mean.)
Definitely, it would be a big job as Galaxy said but over time it would become more refined, and with the joined effort of multiple people I think it could work well.
Also if all fails and this idea does end up getting scrapped, then the most popular of these servers could be used to replace it.

After speaking with the leadership team, we have decided that we will be adding a new server with rotating game modes. Hopefully this will keep the server 'fresh' and will eliminate the problem we have had in the past of having new servers that die out very quickly.
There will be a selection of different game modes that will be rotated every so often (the timing between each rotation will be solidified after we see how well everything works.) For now there will only be four game modes on this rota, chosen by you. However depending on the success of this server more will likely be added.
In the poll above please choose up to four different game modes. Note that if you vote for more than four then all of your votes will be discarded.
Edit: Okay so I really fucked that poll up badly, remaking it in a separate post, sorry for the inconvenience.